/* ==========================================================================
   MODERN TOURNAMENT DISPLAY CSS
   Optimized for 24" portrait displays
   ========================================================================== */

/* Reset a základní styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Custom Properties (CSS4) */
:root {
    /* Barevné schéma */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    --accent-gradient: linear-gradient(90deg, #667eea, #764ba2);
    --success-gradient: linear-gradient(135deg, #56ab2f 0%, #a8e6cf 100%);
    --warning-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    
    /* Textové barvy - NEJVYŠŠÍ KONTRAST */
    --text-primary: #000000;
    --text-secondary: #1a1a1a;
    --text-light: #333333;
    --text-muted: #555555;
    --text-white: #ffffff;
    
    /* Pozadí - VYŠŠÍ KONTRAST */
    --bg-card: rgba(255, 255, 255, 1);
    --bg-overlay: rgba(255, 255, 255, 0.98);
    --bg-transparent: rgba(255, 255, 255, 0.2);
    
    /* Stíny */
    --shadow-light: 0 4px 15px rgba(0, 0, 0, 0.12);
    --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 12px 30px rgba(0, 0, 0, 0.18);
    --shadow-focus: 0 0 0 3px rgba(102, 126, 234, 0.3);
    
    /* Okraje - VÝRAZNĚJŠÍ */
    --border-light: rgba(102, 126, 234, 0.2);
    --border-medium: rgba(102, 126, 234, 0.3);
    --border-divider: rgba(0, 0, 0, 0.15);
    --border-focus: 3px solid #667eea;
    
    /* Animace */
    --transition-fast: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-slow: all 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    /* Rozměry - KOMPAKTNĚJŠÍ */
    --border-radius: 12px;
    --border-radius-large: 16px;
    --border-radius-small: 8px;
    --spacing-xs: 6px;
    --spacing-sm: 12px;
    --spacing-md: 18px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Fonty - MENŠÍ PRO VÍCE OBSAHU */
    --font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.8rem;
    --font-size-sm: 0.9rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.3rem;
    --font-size-2xl: 1.6rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.8rem;
}

/* Základní styling těla */
body {
    font-family: var(--font-family);
    background: var(--primary-gradient);
    background-attachment: fixed;
    min-height: 100vh;
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: var(--font-size-md);
    line-height: 1.4;
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

/* Hlavní kontejner */
.container {
    width: 95%;
    max-width: 1400px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    padding: var(--spacing-lg);
    border: 1px solid var(--bg-transparent);
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(118, 75, 162, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Header styling */
header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 0;
    position: relative;
    display: inline-block;
}

h1::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

/* Main content */
main {
    width: 100%;
}

.tournaments-grid {
    display: grid;
    gap: var(--spacing-sm);
}

/* Tournament cards - KOMPAKTNĚJŠÍ */
.tournament-card {
    background: var(--secondary-gradient);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out forwards;
    cursor: pointer;
}

.tournament-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--accent-gradient);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.tournament-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), 
                                rgba(102, 126, 234, 0.03) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition-fast);
    pointer-events: none;
}

.tournament-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-hover);
}

.tournament-card:hover::after {
    opacity: 1;
}

.tournament-card:focus {
    outline: var(--border-focus);
    outline-offset: 2px;
}

.tournament-card:focus-visible {
    outline: var(--border-focus);
    outline-offset: 2px;
}

/* Staggered animation delays */
.tournament-card:nth-child(2) { animation-delay: 0.05s; }
.tournament-card:nth-child(4) { animation-delay: 0.1s; }
.tournament-card:nth-child(6) { animation-delay: 0.15s; }
.tournament-card:nth-child(8) { animation-delay: 0.2s; }
.tournament-card:nth-child(10) { animation-delay: 0.25s; }

.tournament-date {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: #000000;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.tournament-date::before {
    content: '📅';
    font-size: 1.3rem;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.tournament-details {
    display: grid;
    gap: var(--spacing-xs);
}

.detail-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--border-divider);
    transition: var(--transition-fast);
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-item:hover {
    background: rgba(102, 126, 234, 0.03);
    border-radius: var(--border-radius-small);
    padding-left: var(--spacing-xs);
    margin-left: calc(-1 * var(--spacing-xs));
    padding-right: var(--spacing-xs);
    margin-right: calc(-1 * var(--spacing-xs));
}

.detail-label {
    font-weight: 600;
    color: #000000;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: 4px;
}

.detail-value {
    font-size: var(--font-size-md);
    color: #000000;
    font-weight: 500;
    word-break: break-word;
}

/* Icons pro jednotlivé labely */
.start-time::before {
    content: '🕐';
    font-size: 1.1em;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}

.tournament-name::before {
    content: '🏸';
    font-size: 1.1em;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}

.tournament-note::before {
    content: '📝';
    font-size: 1.1em;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}

/* Speciální stavy */
.no-time, .no-note {
    color: #000000;
    font-style: italic;
    font-weight: 500;
    opacity: 0.7;
}

/* Divider styling */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, #667eea, transparent);
    border: none;
    margin: var(--spacing-sm) 0;
    border-radius: 1px;
    opacity: 0.4;
}

/* No tournaments message */
.no-tournaments {
    text-align: center;
    padding: calc(var(--spacing-xl) * 2) var(--spacing-xl);
    color: #000000;
    background: var(--secondary-gradient);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-light);
}

.no-tournaments-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.7;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.no-tournaments h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
    color: #000000;
    font-weight: 600;
}

.no-tournaments p {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    max-width: 500px;
    margin: 0 auto;
    color: #000000;
}

/* Footer styling */
footer {
    text-align: center;
    color: var(--text-white);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    margin-top: auto;
    padding: var(--spacing-md) 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-width: 600px;
    margin: 0 auto;
}

.footer-content p {
    font-size: var(--font-size-md);
    margin: 0;
}

footer a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
    border-bottom: 2px solid transparent;
    padding: 2px 4px;
    border-radius: 4px;
}

footer a:hover {
    border-bottom-color: var(--text-white);
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.1);
}

footer a:focus {
    outline: 2px solid var(--text-white);
    outline-offset: 2px;
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-overlay);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 1000;
}

.loading-overlay.show {
    display: flex;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(102, 126, 234, 0.3);
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-sm);
}

.loading-overlay p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Skip link pro accessibility */
.skip-link {
    position: absolute !important;
    top: -40px;
    left: 6px;
    background: var(--text-primary);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    text-decoration: none;
    z-index: 1000;
    border-radius: 4px;
    font-weight: 600;
    transition: var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}

/* Screen reader only content */
.sr-only {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Animace */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes slideInFromTop {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ========================================================================== 
   MEDIA QUERIES - RESPONSIVE DESIGN
   ========================================================================== */

/* Media query pro 24" monitor na výšku (1080x1920 nebo 1200x1920) */
@media (min-width: 1080px) and (min-height: 1920px) and (orientation: portrait) {
    :root {
        --font-size-xs: 0.9rem;
        --font-size-sm: 1rem;
        --font-size-md: 1.1rem;
        --font-size-lg: 1.2rem;
        --font-size-xl: 1.4rem;
        --font-size-2xl: 1.8rem;
        --font-size-3xl: 2.2rem;
        --font-size-4xl: 3.2rem;
        --spacing-xs: 8px;
        --spacing-sm: 14px;
        --spacing-md: 20px;
        --spacing-lg: 28px;
        --spacing-xl: 36px;
    }
    
    body {
        font-size: var(--font-size-md);
        padding: var(--spacing-md);
    }
    
    .container {
        width: 92%;
        max-width: 1500px;
        padding: var(--spacing-lg);
    }
    
    h1 {
        font-size: var(--font-size-4xl);
        margin-bottom: var(--spacing-lg);
    }
    
    .tournaments-grid {
        gap: var(--spacing-sm);
    }
    
    .tournament-card {
        padding: var(--spacing-lg);
    }
    
    .tournament-date {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-md);
    }
    
    .detail-item {
        grid-template-columns: 120px 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-sm) 0;
    }
    
    .detail-label {
        font-size: var(--font-size-md);
    }
    
    .detail-value {
        font-size: var(--font-size-lg);
    }
    
    .footer-content p {
        font-size: var(--font-size-md);
    }
    
    .no-tournaments {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .no-tournaments-icon {
        font-size: 4rem;
    }
    
    .no-tournaments h2 {
        font-size: var(--font-size-3xl);
    }
    
    .no-tournaments p {
        font-size: var(--font-size-lg);
    }
}

/* Large desktop (1440px+) */
@media (min-width: 1440px) {
    .container {
        max-width: 1300px;
    }
}

/* Standard desktop (1024px - 1439px) */
@media (min-width: 1024px) and (max-width: 1439px) {
    .container {
        max-width: 1000px;
        padding: var(--spacing-lg);
    }
    
    h1 {
        font-size: 3rem;
    }
}

/* Tablet landscape (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    body {
        padding: var(--spacing-sm);
        font-size: 1rem;
    }
    
    .container {
        width: 95%;
        padding: var(--spacing-lg);
    }
    
    h1 {
        font-size: 2.8rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .tournament-card {
        padding: var(--spacing-lg);
    }
    
    .tournament-date {
        font-size: 2rem;
    }
    
    .detail-item {
        grid-template-columns: 120px 1fr;
        gap: var(--spacing-sm);
    }
}

/* Tablet portrait a mobile landscape (481px - 767px) */
@media (min-width: 481px) and (max-width: 767px) {
    body {
        padding: var(--spacing-sm);
        font-size: 1rem;
    }
    
    .container {
        width: 95%;
        padding: var(--spacing-md);
    }
    
    h1 {
        font-size: 2.2rem;
        margin-bottom: var(--spacing-md);
    }
    
    .tournaments-grid {
        gap: var(--spacing-md);
    }
    
    .tournament-card {
        padding: var(--spacing-md);
    }
    
    .tournament-date {
        font-size: 1.6rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .detail-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
        padding: var(--spacing-sm) 0;
    }
    
    .detail-label {
        font-size: 0.95rem;
    }
    
    .detail-value {
        font-size: 1.1rem;
    }
    
    .footer-content {
        gap: var(--spacing-xs);
    }
    
    .footer-content p {
        font-size: 0.95rem;
    }
}

/* Mobile portrait (≤ 480px) */
@media (max-width: 480px) {
    body {
        padding: var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .container {
        width: 100%;
        padding: var(--spacing-sm);
        border-radius: var(--spacing-sm);
    }
    
    h1 {
        font-size: 1.8rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .tournaments-grid {
        gap: var(--spacing-sm);
    }
    
    .tournament-card {
        padding: var(--spacing-sm);
    }
    
    .tournament-date {
        font-size: 1.4rem;
        margin-bottom: var(--spacing-sm);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .detail-item {
        grid-template-columns: 1fr;
        gap: 4px;
        padding: var(--spacing-xs) 0;
    }
    
    .detail-label {
        font-size: 0.85rem;
    }
    
    .detail-value {
        font-size: 1rem;
    }
    
    .footer-content p {
        font-size: 0.85rem;
    }
    
    .no-tournaments {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .no-tournaments-icon {
        font-size: 3rem;
    }
    
    .no-tournaments h2 {
        font-size: 1.5rem;
    }
    
    .no-tournaments p {
        font-size: 1rem;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .tournament-card {
        border-width: 0.5px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f7fafc;
        --text-secondary: #e2e8f0;
        --text-light: #a0aec0;
        --bg-card: rgba(45, 55, 72, 0.95);
        --bg-overlay: rgba(45, 55, 72, 0.9);
        --border-light: rgba(102, 126, 234, 0.2);
        --border-divider: rgba(255, 255, 255, 0.1);
    }
    
    .no-tournaments {
        background: linear-gradient(135deg, rgba(45, 55, 72, 0.8) 0%, rgba(74, 85, 104, 0.8) 100%);
    }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .tournament-card {
        animation: none;
        opacity: 1;
        transform: none;
    }
}

/* Print styles */
@media print {
    * {
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
        font-size: 12pt;
        padding: 0;
    }
    
    .container {
        background: white !important;
        border: 1px solid #ccc;
        border-radius: 0;
        margin: 0;
        padding: 20pt;
        max-width: none;
        width: 100%;
    }
    
    .tournament-card {
        break-inside: avoid;
        background: white !important;
        border: 1px solid #ddd;
        margin-bottom: 20pt;
        padding: 15pt;
    }
    
    .tournament-card::before,
    .tournament-card::after {
        display: none;
    }
    
    .tournament-date::before,
    .start-time::before,
    .tournament-name::before,
    .tournament-note::before {
        display: none;
    }
    
    h1 {
        color: black !important;
        background: none !important;
        -webkit-text-fill-color: unset !important;
        text-shadow: none !important;
    }
    
    footer {
        color: black !important;
        text-shadow: none !important;
        margin-top: 30pt;
    }
    
    footer a {
        color: black !important;
        border-bottom: 1px solid black;
    }
    
    .loading-overlay,
    .skip-link {
        display: none !important;
    }
    
    .divider {
        background: #ccc !important;
        height: 1px;
    }
}